但是当您回放性能测试来模拟用户去产生装载时，您可能不希望使用相同的URL和请求参数来回放。
But when you play back the performance test to generate load with many simulated users, you may not want the same URLs and request parameters played back.
RationalPerformance Tester：在测试执行每个页面的HTTP请求时，它的行为与浏览器类似。
Rational Performance Tester: Behaves similarly to a browser by executing HTTP requests for each page in the test.
您可能会感到非常失望，因为您在生产中所得到的每秒请求数量仅仅是在实验环境中执行基准测试时所测数量的十分之一(或者更少)。
You may find yourself bitterly disappointed when you only get a tenth of the requests-per-second (or worse) in production than you measured when performing benchmarks in your lab environment.
不好的一面是每次需要进行添加或更改(比如实现Ajax请求的错误处理)时，您都必须要手动修改所有页面并重新测试它们。
The bad news is that every time you have to add or change something, such as implementing error handling for the Ajax requests, you'll have to manually modify all your pages and retest them.
与大多数尝试模拟HTTP请求的Web测试工具不同，Selenium执行Web测试时，就仿佛它本身就是浏览器。
Unlike most Web testing tools, which attempt to simulate HTTP requests, Selenium approaches Web testing as if it were the browser itself.
英国哥伦比亚除夜学的研究职员于2007到2009年期间招募了538位接受测试的病人，其中马虎折病人每周农村落收到如许一条短信，并且丫究职员请求他们正正在48小时内回答。
Researchers at the University of British Columbia enrolled 538 patients between 2007 and 2009. Half the patients received the weekly text message, and were asked to respond within 48 hours.
英国哥伦比亚除夜学的研究职员于2007到2009年期间招募了538位接受测试的病人，其中马虎折病人每周农村落收到如许一条短信，并且丫究职员请求他们正正在48小时内回答。
Researchers at the University of British Columbia enrolled 538 patients between 2007 and 2009. Half the patients received the weekly text message, and were asked to respond within 48 hours.
应用推荐